MCKIN-27715: add missing translations (#233)

* MCKIN-27715: add missing translations (#232)

* mark missing strings for translations

* add missing translations

* bump version

* add japanese translations

* fix tests

* fix tests

* update translations

* bump version

* remove unused import

Author: msaqib52

edx_notifications/locale/ar/LC_MESSAGES/django.mo

@@ -10,6 +10,7 @@
 from underscore import _ as us
 from django.contrib.staticfiles import finders
 from django.templatetags.static import static
+from django.utils.translation import gettext
 
 from edx_notifications.const import RENDER_FORMAT_HTML, RENDER_FORMAT_JSON
 from edx_notifications.renderers.renderer import BaseNotificationRenderer
@@ -106,7 +107,8 @@ def render(self, msg, render_format, lang):
         created_str = msg.created.strftime("%B %d, %Y") + ' at ' + msg.created.strftime("%H:%M%p") + ' GMT'
 
         _payload.update({
-            '__display_created': created_str
+            '__display_created': created_str,
+            'gettext': gettext
         })
 
         return self.underscore_template(_payload)